Family name Komatsubara (Komatsubara 
, Комацубара) , throughout the world, is a rare surname. The surname Komatsubara is characteristic of Oman, where it is a rare surname, Japan, where it is a very rare surname, and Brazil. Measured by absolute frequency, this name is the most popular in Japan, Brazil, and the United States. Much less frequently, Komatsubara is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Komatsubara | Japan, Malaysia, United States, Oman, Brazil |
Komatsuhara, Omatsubara, Коматсубара, and コマツバラ
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takaji komatsubara Japanese educator and bureaucrat (b. 1875) |
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| junko komatsubara researcher ORCID ID = 0000-0003-0099-6744 |
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